<?php

/**
 * Copyright 2019 Huawei Technologies Co.,Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License.  You may obtain a copy of the
 * License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed
 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 */

/**
 * This sample demonstrates how to list objects under specified bucket
 * from OBS using the OBS SDK for PHP.
 */
if (file_exists('vendor/autoload.php')) {
    require 'vendor/autoload.php';
} else {
    require '../vendor/autoload.php'; // sample env
}

if (file_exists('obs-autoloader.php')) {
    require 'obs-autoloader.php';
} else {
    require '../obs-autoloader.php'; // sample env
}

use Obs\ObsClient;
use Obs\ObsException;

$ak = '*** Provide your Access Key ***';

$sk = '*** Provide your Secret Key ***';

$endpoint = 'https://your-endpoint:443';

$bucketName = 'my-obs-bucket-demo';


/*
 * Constructs a obs client instance with your account for accessing OBS
 */
$obsClient = ObsClient::factory([
    'key' => $ak,
    'secret' => $sk,
    'endpoint' => $endpoint,
    'socket_timeout' => 30,
    'connect_timeout' => 10
]);

try {

    /*
     * Create bucket
     */
    printf("Create a new bucket for demo\n\n");
    $obsClient->createBucket(['Bucket' => $bucketName]);


    /*
     * First insert 100 objects for demo
     */
    $promise = null;
    $keyPrefix = 'MyObjectKey';
    for ($i = 0; $i < 100; $i++) {
        $key = $keyPrefix . strval($i);
        $p = $obsClient->putObjectAsync(['Bucket' => $bucketName, 'Key' => $key, 'Body' => 'Hello OBS'], function () {
        });
        if ($promise === null) {
            $promise = $p;
        }
        $keys[] = ['Key' => $key];
    }
    $promise->wait();

    printf("Put %d objects completed.\n\n", count($keys));

    /*
     * List objects using default parameters, will return up to 1000 objects
     */
    printf("List objects using default parameters:\n");

    $resp = $obsClient->listObjects(['Bucket' => $bucketName]);
    foreach ($resp ['Contents'] as $content) {
        printf("\t%s etag[%s]\n", $content ['Key'], $content ['ETag']);
    }
    printf("\n");

    /*
     * List the first 10 objects
     */
    printf("List the first 10 objects:\n");

    $resp = $obsClient->listObjects(['Bucket' => $bucketName, 'MaxKeys' => 10]);
    foreach ($resp ['Contents'] as $content) {
        printf("\t%s etag[%s]\n", $content ['Key'], $content ['ETag']);
    }
    printf("\n");

    $theSecond10ObjectsMarker = $resp['NextMarker'];
    /*
     * List the second 10 objects using marker
     */
    printf("List the second 10 objects using marker:\n");
    $resp = $obsClient->listObjects(['Bucket' => $bucketName, 'MaxKeys' => 10, 'Marker' => $theSecond10ObjectsMarker]);
    foreach ($resp ['Contents'] as $content) {
        printf("\t%s etag[%s]\n", $content ['Key'], $content ['ETag']);
    }
    printf("\n");

    /*
     * List objects with prefix and max keys
     */
    printf("List objects with prefix and max keys:\n");
    $resp = $obsClient->listObjects(['Bucket' => $bucketName, 'MaxKeys' => 5, 'Prefix' => $keyPrefix . '2']);
    foreach ($resp ['Contents'] as $content) {
        printf("\t%s etag[%s]\n", $content ['Key'], $content ['ETag']);
    }
    printf("\n");

    /*
     * List all the objects in way of pagination
     */
    printf("List all the objects in way of pagination:\n");
    $nextMarker = null;
    $index = 1;
    do {

        $resp = $obsClient->listObjects(['Bucket' => $bucketName, 'MaxKeys' => 10, 'Marker' => $nextMarker]);
        $nextMarker = $resp['NextMarker'];
        printf("Page:%d\n", $index++);
        foreach ($resp ['Contents'] as $content) {
            printf("\t%s etag[%s]\n", $content ['Key'], $content ['ETag']);
        }

    } while ($resp['IsTruncated']);
    printf("\n");
    /*
     * Delete all the objects created
     */
    $resp = $obsClient->deleteObjects([
        'Bucket' => $bucketName,
        'Objects' => $keys,
        'Quiet' => false,
    ]);

    printf("Delete results:\n\n");
    $i = 0;
    foreach ($resp['Deleteds'] as $delete) {
        printf("\tDeleteds[$i][Key]:%s,Deleted[$i][VersionId]:%s，Deleted[$i][DeleteMarker]:%s，Deleted[$i][DeleteMarkerVersionId]:%s\n",
            $delete['Key'], $delete['VersionId'], $delete['DeleteMarker'], $delete['DeleteMarkerVersionId']);
        $i++;
    }
    printf("\n");
    printf("Error results:\n\n");
    $i = 0;
    foreach ($resp['Errors'] as $error) {
        printf("\tErrors[$i][Key]:%s,Errors[$i][VersionId]:%s，Errors[$i][Code]:%s，Errors[$i][Message]:%s\n",
            $error['Key'], $error['VersionId'], $error['Code'], $error['Message']);
        $i++;
    }


} catch (ObsException $e) {
    echo 'Response Code:' . $e->getStatusCode() . PHP_EOL;
    echo 'Error Message:' . $e->getExceptionMessage() . PHP_EOL;
    echo 'Error Code:' . $e->getExceptionCode() . PHP_EOL;
    echo 'Request ID:' . $e->getRequestId() . PHP_EOL;
    echo 'Exception Type:' . $e->getExceptionType() . PHP_EOL;
} finally {
    $obsClient->close();
}